The Arduino 4 Relays shield is designed as a solution for driving those high power loads that cannot be driven by Arduino's digital IOs due to current and voltage limits. The shield features 4x relays, with each relay providing 2 pole changeover contacts (NO and NC). The 2 changeover contacts have been put in parallel in order to increase output current limits.\n\nThe relays are controlled by the following Arduino board pins:\n\nRelay 1 = Arduino pin 4\n\nRelay 2 = Arduino pin 7\n\nRelay 3 = Arduino pin 8\n\nRelay 4 = Arduino pin12\n\n--Compatible with all Arduino boards, 5V and 3.3V\n\n--4x Status LEDs\n\n--Power provided by base board\n\n--Operating voltage 5V\n\n--Maximum switching capacity 60W\n\n--6x TinkerKit IO interfaces\n\n--\nOur eBay Store\n\nPlease note: This item has a longer lead time for dispatch then normal as it's a non-stocked item that is ordered in, please see the estimated delivery date by eBay. We will of course ship the item sooner if possible.\n\nArduino 4 Rel;